* Offset adjustment and 4x4 matrix operation circuit board [#q0f18aee]

This is an offset adjustment and 4x4 matrix operation.

** Circuit diagram and board picture [#b89e3cb0]
*** Version 1 [#y7acebfc]
#ref(OffsetMatix_circuit.png,,25%);
Fig.1: Circuit diagram (typical constants are shown).
#ref(OffsetMatix_circuit.jpeg,,25%);
Fig.1: Circuit diagram.

#ref(OffsetMatix_board1.png,,25%);
Fig.2: Board picture (frontside).
#ref(OffsetMatix_board.jpeg,,25%);
Fig.2: Board picture. (a) frontside, (b) back side.

#ref(OffsetMatix_board2.png,,25%);
Fig.3: Board picture (backside).

- Known issues
-- 
-- hoge

** Design [#of197199]
- Ver1: designed by K. Nagano in Oct. 2018.
-- File directory (in PC in office)
--- Circuit diagram: hoge
--- Board design: hoge

** Manufacturing [#a5ec7974]
- K. Nagano ordered 20 borads to P-ban in Oct. 2018.
- If you want to use this board, ask K. Nagano
- Ver1 variation
-- S/N1: [[design:https://granite.phys.s.u-tokyo.ac.jp/wiki/Lab/index.php?plugin=attach&pcmd=open&file=OffsetMatix_circuit_sn1.jpeg&refer=AndoLabInstrumentsOffsetMatrix]], [[measurement:https://granite.phys.s.u-tokyo.ac.jp/elog/?p=1881]]

** Usage history [#y31d32f5]
- 2018/11/05: 20 delivered (total 20(v1)), K. Nagano
- 2018/11/05: 1 used for test (total 19(v1)), K. Nagano



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